Pasting device for web presses



Aug. 3 1926.. 1,594,583 H. A. w. WOOD PASTING DEVICE FOR WEB PRESSESOriginal Filed April 9, 1915 4 f 4? 142 Z! lE Y Patented Aug. 3, 192%.

UNITED STATES PATENT OF HENRY A. WISE W001i, on New YORK, n. Y, ASSIGNOR'ro woon nnwsrarna MA CHINERY CORPORATION, or NEWYYORK, n. Y., ACORPORATION or VIRGINIA.

IPASTING DEVICE FOR WEB PRESSES.

Original application filed April 9, 1915, Serial No. $50,348. Patent No.1,378,304. Divided and this application filed April 26, 1921, Serial No.464,577. Renewed December 16, 1925.

This is a division of my patent No. 1,378,304, granted May 17, 1921, onan ap plication filed April 9, 1915, and the invention relates to apasting device for use in connection with a web press.

The principal objects of the invention are to provide means for applyinga continuous supply of paste along a margin of the web while the pressis running; toprovide simplified means whereby the paste can be forcedon the web by pneumatic pressure, and means whereby the paste receptaclecan readily be applied to the press and removed therefrom without havingto stop the press. The invention also involves improvements in themechanism for accomplishing these results.

Reference is to be had to the accompanying drawings, in which- I Fig. 1is a section of a preferred nozzle in accordance with this invention asapplied to a web press;

Fig. 2 is a plan of the nozzle, and

Fig. 3 is a perspective view of the pasting device.

Thisinvention is designed to obviate the difficulties mentioned in myabove mentioned patent and especially to permit of the running of thepress at a high rate of speed without danger of throwing off any paste.

Although the details of the press are not illustrated herein, yet thedevice is intended for use on a web press. This press constitutes themeans for feeding the web referred to herein. On the frame of this pressis shown a pair of brackets for supporting a tray 48 carrying a pair ofpaste receptacles or containers 43.

Each container is kept in air-tight condition on the top. Through thecover passes a paste tube 42. It is open atthe bottom and is providedwith a coupling 44 for detachably connecting it to a branch pipe 41.These two pipes are connected to a horizontal tube provided with anupwardly opening nozzle. This has a horizontal fiat surface 19 at thetop, parallel with the direction of the web W, and substantially incontact therewith. This surface is proy ided with a perforation 20,preferably substantially at the center thereof. This perforation is madesmall to permit of the paste being forced through to form a small threador stream, as will appear. From this perforation a shallow channel 21extends to the edge of the surface 19, running in the same direction asthe web and slanting upwardly toward thev edge of this surface. This isprovided forthe purpose of smoothing out and thinning the strip of pasteap-' plied to the web.

The pipe sections 41 immediately above these couplings 44 are providedwith ball ,checks45 to prevent leakageof paste when the cans areremoved. These cans are connected with the air pipe line 46 by sectionsof hose 47 or the like, detachably connected with the cans. The cans areshown as supported on a tray 48 and the tube 40 as being carried by asuitable brace 49 on the frame of the press.

The operation of the device is as follows: Upon the pressing of thestarting button 30, air under pressure is admitted to the pastereceptacle in the way shown in my above mentioned patent, if desired. Atthis time, of course, the press starts and the paste is forced throughthe nozzle opening 20 against the surface of the web W as thelattertravels. The passage of the paste along the channel 21 spreads" it andsmooths it so as to get a line of paste on the web, of uniform width andthickness. The pressing of the stopping button 31 will relieve theinterior of the container of the air pressure and stop the flow of pasteimmediately. Thus the paste will not be blown out when no web isrunning, as in case of a paper break, or when the web is being threadedin the press.

The especial advantage of this construction is the simplicity and themeans where by a continuous supply of paste can be furnished while themachine is running, without having to stop the press if one of the canshas to be removed. When this is done, the stop cock 50 connected to thatcan is shut, that hose 47 disconnected from the can, and the coupling 44on that side opened. 7

along a patli', a c'losedpa'ste 'recepta'clehaving a nozzle for applyingpaste'against" the sur face of the web as it moves meansfor applyingpneurnatic pressure to the paste in the receptacle for-forcing, thepaste under pressure thronglr the nozzle, means for starting andstopping the lntroduction of air into thewrecepta'cle to control theflow of the paste; and means for snpplyingipaste; to the nozzle fromanother source when said; receptacle is notinoperat-iont 2-.- Ineapasting device the combination of a plurality of paste. contai ners anozzle connected with all the containers-fordirectingt paste therefromagainst; a traveling web, a pipesystem for taking the pastefrom: allofthe oontainersto the nozzle,- an air supply pipe entirelydisconnectedfrom' said pipe 3*. Ina pasting",device,tliecombin'ation of a pluralityof paste-containers; a nozzle con- 1 nected with all the containers fordirecting paste therefrom against a traveling web, a

pipe vsystem having :automatically lz closin-g valves therein.fortaking, the paste from all of the containers to the nozzle, an airsuppipe -and-means connected with-said am supply pipe andvdetachably'connected withwsaidi containers for forcing: ain into them; behind thepaste thereimwhereby any of said containersrcanbe detached a-ndvtheremaining: ones will: continue to supply paste to the inozzle. t

In testiinonv WliBIBOfMI have hereunto:

affixed iny signature; 4

HENRY" A. .WISE weenie

